Features-
Specially developed for impact drills
Sturdy design with metal sleeve. Version 636619000 with hardened carbide jaws
Double sleeve with radial locking for secure tool clamping
Keyless for quick tool change
Impact-proof design
Drills through using locking screw for clockwise and anti-clockwise operating machines
With spanner flat for assembly and disassembly

Specifications-
Clamping width 1.5 - 13 mm
Female thread 1/2 " - 20 UNF
Outer Ø 42.9 mm
Length (closed) 72.4 mm
Weight 0.3 kg